08 check engine light "vent code"
Thread Starter
6th Gear
Joined: Jan 2014
Posts: 6
Likes: 0
08 check engine light "vent code"
New to the forum and recently purchased a C6,car has low mileage,when purchased it had 10k miles ,currently 13k plus.In any case recently had a check engine light come on ,went to Oreilly's ran the scanner and says it's a vent code.Should I start with a gas cap ?
Or off to the dealer? Ideas please?
Or off to the dealer? Ideas please?
Melting Slicks
Joined: Sep 2011
Posts: 3,022
Likes: 171
From: Vancouver Island
P0442 is "evaporative emission system leak detected (small leak)" and is likely the gas cap. I had this code once, it wouldn't go away after over a dozen engine start cycles. Being leary of dealers, i bought a code reader and cleared it and it never re-appeared. There are other codes relating to major leaks that may require repairs. I would invest in a code reader and determine what code is associated with your situation, and go from there.
Race Director
Joined: Sep 2009
Posts: 11,351
Likes: 2,445
From: Eastern
This thread was posted a few days ago with the codes for vent/gas cap, evap issues.
It's a good read and could help
http://forums.corvetteforum.com/c6-c...49-w-pics.html
It's a good read and could help
http://forums.corvetteforum.com/c6-c...49-w-pics.html
Thread Starter
6th Gear
Joined: Jan 2014
Posts: 6
Likes: 0
Paul the code is P0499,I purchased a code reader,cleared the codes but still have check engine light on.I guess I need to drive it a bit and check to see if the codes come back.Your thoughts?
Racer
Joined: Jul 2007
Posts: 424
Likes: 19
From: Taylor Mill KY
It turned out to be the valve on my 2008. It was a little difficult to get to it with AT. We ran the tests that were in the manual. If I remember you check to see if the computer is turning the valve on and off with test light. My valve was bad and I needed the the small harness as well. The GMPP covered it for me.
Le Mans Master
Joined: Nov 2003
Posts: 5,401
Likes: 52
From: Norman OK
Double check that your gas cap is on correctly and clear the codes once or twice if it still comes back I would replace the fuel valve solenoid as described above.
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